Extraction of Important Elements from their Ores

In extractive metallurgy of zinc, partial fusion of $ZnO$ with coke is called sintering and reduction of the ore to the molten metal is called

Which of the following is not a mineral of aluminium?

The reaction in the reduction zone of the blast furnace during the smelting of iron are as follows. Complete the equations:

$3{\mathrm{Fe}}_2{\mathrm{O}}_3+\_\_\_\_\_ \to 2{\mathrm{Fe}}_3{\mathrm{O}}_4+\_\_\_\_\_$

${\mathrm{Fe}}_3{\mathrm{O}}_4+4 \_\_\_\_\_\to \mathrm{Fe}+4 \_\_\_\_\_$

During the smelting of iron, the reaction $\mathrm{CaO}+{\mathrm{SiO}}_2\to {\mathrm{CaSiO}}_2$ takes place in the temperature zone of:

Which of the following is the purest form of iron?

The maximum temperature that can be achieved in blast furnace is:

The extraction of which of the following metals involves bessemerization?

In the context of the Hall-Heroult process for the extraction of Al, which of the following statements is false?

Which series of reactions correctly represents chemical relations related to iron and its compound?

Select the best method for the manufacturing of aluminium from bauxite from the following.

Blister copper is :

$$\begin{gathered} 2\mathrm{FeS} + 3{\mathrm{O}}_2 \to 2\mathrm{FeO} + 2{\mathrm{SO}}_2 \\ \mathrm{FeO} + {\mathrm{SiO}}_2 \to \_\_\_\_\_ \\ 2{\mathrm{Cu}}_2\mathrm{S} + 3{\mathrm{O}}_2 \to 2{\mathrm{Cu}}_2\mathrm{O} + 2{\mathrm{SO}}_2 \\ 2{\mathrm{Cu}}_2\mathrm{O} + {\mathrm{Cu}}_2\mathrm{S} \to \_\_\_\_\_ + {\mathrm{SO}}_2 \end{gathered}$$
The above reactions convert Copper Sulphide/Oxide into blister copper. The total number of copper in the product side of the reactions are:

Which of the following sulphides when heated strongly in air gives the corresponding metal?

Bassemerization is used in the extraction of:

The role of graphite in the electrometallurgy of aluminium is:

Which among the following reactions occurs at the zone of slag formation in extraction of iron by blast furnace?